How do you reconcile IDisposable and IoC?

Posted by Mr. Putty on Stack Overflow See other posts from Stack Overflow or by Mr. Putty
Published on 2009-06-12T16:48:43Z Indexed on 2010/03/12 21:07 UTC
Read the original article Hit count: 403

Filed under:

inversion-of-control

|

c#

|

idisposable

|

unity

I'm finally wrapping my head around IoC and DI in C#, and am struggling with some of the edges. I'm using the Unity container, but I think this question applies more broadly.

Using an IoC container to dispense instances that implement IDisposable freaks me out! How are you supposed to know if you should Dispose()? The instance might have been created just for you (and therefor you should Dispose() it), or it could be an instance whose lifetime is managed elsewhere (and therefor you'd better not). Nothing in the code tells you, and in fact this could change based on configuration!!! This seems deadly to me.

Can any IoC experts out there describe good ways to handle this ambiguity?

© Stack Overflow or respective owner

Related posts about inversion-of-control

What is Inversion of control and why we need it?

as seen on ASP.net Weblogs - Search for 'ASP.net Weblogs'
Most of programmer need inversion of control pattern in today’s complex real time application world. So I have decided to write a blog post about it. This blog post will explain what is Inversion of control and why we need it. We are going to take a real world example so it would be better to understand… >>> More
SPRING: What is AOP, Dependency Injection and Inversion Of Control in Simple English

as seen on Stack Overflow - Search for 'Stack Overflow'
I have tried to understand AOP, Dependency Injection and Inversion of Control SPRING related concepts but I am having hard time understanding it. Can anyone explain this in simple English ? >>> More
Simple Inversion of Control framework for Java/Scala

as seen on Stack Overflow - Search for 'Stack Overflow'
I am looking for a simple to use IoC container for GUI applications written in Java/Scala. It should support Convention over Configuration, lifecycle management, configuration in code (preferably without any XML needed at all), and checking dependencies at compile-time as much as possible. Something… >>> More
Inversion of Control Resource

as seen on Geeks with Blogs - Search for 'Geeks with Blogs'
Well… this is going to be another really short blog posting. I have been meaning to read more about IOC containers and came across this blog post which seemed to really explain the concept well – based on Castle Windsor. I also enjoyed reading the replies about IOC on stack overflow and what it… >>> More
Inversion of Control Container for PHP?

as seen on Stack Overflow - Search for 'Stack Overflow'
I am trying to code TDD style in PHP and one of my biggest stumbling blocks (other than lack of a decent IDE) is that I have to make my own hacked together IoC container just to inject all my mock objects properly. Has anyone used an Ioc container in php? All I've been able to find is PHP IOC on… >>> More

Related posts about c#

.NET WebRequest.PreAuthenticate not quite what it sounds like

as seen on West-Wind - Search for 'West-Wind'
I’ve run into the problem a few times now: How to pre-authenticate .NET WebRequest calls doing an HTTP call to the server – essentially send authentication credentials on the very first request instead of waiting for a server challenge first? At first glance this sound like it should be easy:… >>> More
HttpWebRequest and Ignoring SSL Certificate Errors

as seen on West-Wind - Search for 'West-Wind'
Man I can't believe this. I'm still mucking around with OFX servers and it drives me absolutely crazy how some these servers are just so unbelievably misconfigured. I've recently hit three different 3 major brokerages which fail HTTP validation with bad or corrupt certificates at least according to… >>> More
The dynamic Type in C# Simplifies COM Member Access from Visual FoxPro

as seen on West-Wind - Search for 'West-Wind'
I’ve written quite a bit about Visual FoxPro interoperating with .NET in the past both for ASP.NET interacting with Visual FoxPro COM objects as well as Visual FoxPro calling into .NET code via COM Interop. COM Interop with Visual FoxPro has a number of problems but one of them at least got a lot… >>> More
Dynamic Type to do away with Reflection

as seen on West-Wind - Search for 'West-Wind'
The dynamic type in C# 4.0 is a welcome addition to the language. One thing I’ve been doing a lot with it is to remove explicit Reflection code that’s often necessary when you ‘dynamically’ need to walk and object hierarchy. In the past I’ve had a number of ReflectionUtils that used string based expressions… >>> More
Finding a Relative Path in .NET

as seen on West-Wind - Search for 'West-Wind'
Here’s a nice and simple path utility that I’ve needed in a number of applications: I need to find a relative path based on a base path. So if I’m working in a folder called c:\temp\templates\ and I want to find a relative path for c:\temp\templates\subdir\test.txt I want to receive back subdir\test… >>> More